| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 32 |
| Front Brake excessively binding (1.2.1 (f)) | 11 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 10 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Registration plate issues | 6 |
| Front Brake excessively binding |1.2.1 |f|| | 5 |
| Registration plate lamp issues | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 4 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Rear Brake excessively binding |1.2.1 |f|| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Front Brake fluid contaminated (1.8 (a)) | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Brake fluid contaminated (1.8 (a)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Front Steering headbearing has excessive free play Head bearings notchy |2.2.2| | 1 |
| Front Roller brake test indicates a binding brake Brake binding |3.3.A1a| | 1 |
| Rear Roller brake test indicates a binding brake Brake binding |3.3.A1a| | 1 |
| Exhaust silencer insecure clamp corroded |8.1.1 |b| |i|| | 1 |
| Rear Brake component insecure caliper mounting bolt |1.1.21 |c|| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Floor brake test indicates a binding brake FRONT BRAKES BINDING |3.3.C2c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Rear Brake disc contaminated with oil |1.1.14 |b|| | 1 |
| Front Brake disc|s| has excessive run out fitted the wrong way "abs ring wrong side from wheel" |3.2.A1m| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls At Full lock Clutch and Front Brake levers are significantly pressed in |2.1.2b| | 1 |
| Offside Front Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Headlamp deteriorated and function impaired Headlamp dip bulb incorrectly fitted and no beam pattern present |1.2.3a| | 1 |
| Headlamp aim not tested see other failure |1.6| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak Front fork seal leaking |5.3.2 |b|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired rear drive hub |5.1.3 |a| |ii|| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Nearside Front Handlebar so insecure it is likely to become detached |2.2.1 |b| |ii|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Brake disc contaminated Chain oil |1.1.14 |b|| | 1 |
| Front Brake fluid contaminated |1.8 |a|| | 1 |
| Rear Brake fluid contaminated |1.8 |a|| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp light source and lamp not compatible hid system fitted |4.1.4 |c|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Roller brake test indicates a binding brake FRONT OS OUTER PAD WORN CLOSE TO LIMIT |3.3.A1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Throttle operating incorrectly throttle sticking on with steering at full lock |6.2.1f| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering handguards fouling screen |2.1.2a| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition Baffle is missing |8.1.1 |a|| | 1 |
| Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Steering headbearing excessively stiff or notchy very notchy when front wheel raised. (2.2.2 (f) (i)) | 1 |
| Wheel bearing play so excessive it is likely to break up FRONT WHEEL BEARINGS WORN WITH PLAY EVIDENT. (5.1.3 (a) (ii)) | 1 |
| Front Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Brake lining(s) less than 1.0 mm thick Inner pad (1.1.13 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar LH Heated grip loose. (2.2.1 (d) (ii)) | 1 |
| Brake fluid contaminated (1.8 (a)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Front Wheel damaged or distorted to the extent that control of the motorcycle is likely to be adversely affected (5.2.2 (c) (ii)) | 1 |
| Stop lamp not working front brake (4.3.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle and switch insecure to handlebar (6.2.7 (a) (ii)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Upper Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Sticking open when turning left (6.2.7 (a) (ii)) | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Offside Front Motorcycle structure modified such that it is likely to adversely affect braking or steering (6.1.1 (d) (ii)) | 1 |
| Nearside Front Motorcycle structure is so deformed it is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Offside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |